| Named By: | Carl Friedrich Heinrich Credner in 1888 |
| Time Period: | Early Permian, Sakmarian |
| Location: | Germany |
| Size: | Known specimens up to 60 centimetres long, but fully grown adults may have grown larger |
| Diet: | Carnivore |
| Fossil(s): | Skull and partial post cranial remains of juvenile individuals |
| Classification: | | Chordata | Synapsida | Pelycosauria | Sphenacodontia | |
| Also known as: | | Haptodus longicaudata | Palaeosphenodon longicaudata | |
Palaeohatteria is an extinct genus of basal sphenacodont known from the Early Permian period (Sakmarian stage) of Saxony, Germany. It contains a single species, Palaeohatteria longicaudata.